A collapse in the polar vortex is letting Artic air come here. What that means, and why it happens.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

A winter storm descending on the US is expected to deliver heavy snow and ice to more than 150 million people across roughly ...

A crippling winter storm that could paralyze parts of the Southern and Central U.S. this weekend, and some of the effects ...

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

The incoming Arctic blast will bring very cold temperatures to West Michigan, but it still falls short of the historic, ...